infrasound; sound waves below human hearing range
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Meanings
1 sense · 4 examplesnoun
infrasound; sound waves with a frequency below the lower limit of human hearing
neutralA technical term in physics and geoscience. It's often contrasted with ultrasound (超声波).
Cì次
shēng声
bō波
de的
pín频
lǜ率
tōng通
cháng常
dī低
yú于
èr2
shí0
hè赫
zī兹
。
The frequency of infrasound is typically below 20 Hertz.
Dà大
xiàng象
kě可
yǐ以
yòng用
cì次
shēng声
bō波
jìn进
xíng行
yuǎn远
jù距
lí离
jiāo交
liú流
。
Elephants can use infrasound for long-distance communication.
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Kē科
xué学
jiā家
lì利
yòng用
cì次
shēng声
bō波
jiān监
cè测
huǒ火
shān山
huó活
dòng动
hé和
dì地
zhèn震
。
Scientists use infrasound to monitor volcanic activity and earthquakes.
Cì次
shēng声
bō波
zài在
kōng空
qì气
zhōng中
chuán传
bō播
shí时
néng能
liàng量
shuāi衰
jiǎn减
hěn很
xiǎo小
。
Infrasound experiences very little energy attenuation when propagating through air.